b3d853ad35
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- fetch_fragment_batch() for N+1 avoidance with per-key Redis cache - link-card fragment handlers in blog, market, events, federation (single + batch mode) - link_card.html templates per app with content-specific previews - shared/infrastructure/oembed.py: build_oembed_response, build_og_meta, build_oembed_link_tag - GET /oembed routes on blog, market, events - og_meta + oembed_link rendering in base template <head> - INTERNAL_URL_ARTDAG in docker-compose.yml for cross-stack fragment fetches Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
82 lines
2.7 KiB
Python
82 lines
2.7 KiB
Python
"""Federation app fragment endpoints.
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Exposes HTML fragments at ``/internal/fragments/<type>`` for consumption
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by other coop apps via the fragment client.
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"""
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from __future__ import annotations
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from quart import Blueprint, Response, request
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from shared.infrastructure.fragments import FRAGMENT_HEADER
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def register():
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bp = Blueprint("fragments", __name__, url_prefix="/internal/fragments")
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_handlers: dict[str, object] = {}
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@bp.before_request
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async def _require_fragment_header():
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if not request.headers.get(FRAGMENT_HEADER):
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return Response("", status=403)
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@bp.get("/<fragment_type>")
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async def get_fragment(fragment_type: str):
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handler = _handlers.get(fragment_type)
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if handler is None:
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return Response("", status=200, content_type="text/html")
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html = await handler()
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return Response(html, status=200, content_type="text/html")
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# --- link-card fragment: actor profile preview card --------------------------
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async def _link_card_handler():
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from quart import g, render_template
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from shared.services.registry import services
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from shared.infrastructure.urls import federation_url
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username = request.args.get("username", "")
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slug = request.args.get("slug", "")
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keys_raw = request.args.get("keys", "")
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# Batch mode
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if keys_raw:
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usernames = [k.strip() for k in keys_raw.split(",") if k.strip()]
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parts = []
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for u in usernames:
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parts.append(f"<!-- fragment:{u} -->")
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actor = await services.federation.get_actor_by_username(g.s, u)
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if actor:
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parts.append(await render_template(
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"fragments/link_card.html",
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display_name=actor.display_name,
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username=actor.preferred_username,
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avatar_url=None,
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summary=actor.summary,
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link=federation_url(f"/users/{actor.preferred_username}"),
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))
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return "\n".join(parts)
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# Single mode
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lookup = username or slug
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if not lookup:
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return ""
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actor = await services.federation.get_actor_by_username(g.s, lookup)
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if not actor:
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return ""
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return await render_template(
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"fragments/link_card.html",
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display_name=actor.display_name,
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username=actor.preferred_username,
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avatar_url=None,
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summary=actor.summary,
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link=federation_url(f"/users/{actor.preferred_username}"),
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)
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_handlers["link-card"] = _link_card_handler
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bp._fragment_handlers = _handlers
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return bp
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